1. Find a least squares straight line for the following data:
x1234
y5367
Ans: y= 3 + 0.9x
2. Fit a straight line to the following data:
x12345
y34568
Ans: y= 1.6 + 1.2x
3. Fit a quadratic polynomial to the following data:
x13 5 79
y2710119
Ans: y=−1.556 + 3.757x− 0.2857x
2
4. Fit the following data to the law pv
g
=c:
p20010050302010
v1.01.72.94.85.910
Ans: pv
1.3
= 200
5. Fit the curve y=ae
bx
to the following data:
x0 2 4
y5.11031.1
[Andhra 1999] ...
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